Home / 3,075.22-4,243.79-1,677.97

Finding the Fourth Proportional to 3,075.22, 4,243.79 and 1,677.97

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Solution

The fourth proportional to 3,075.22, 4,243.79 and 1,677.97 is: 2,315.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,075.22 : 4,243.79 = 1,677.97 : x
  2. Step 2: Convert to fraction form
    3,075.22/4,243.79 = 1,677.97/x
  3. Step 3: Cross multiply
    3,075.22x = 4,243.79 × 1,677.97
  4. Step 4: Simplify right side
    3,075.22x = 7,120,952.31
  5. Step 5: Solve for x
    x = 7,120,952.31/3,075.22
  6. Step 6: Final answer
    x = 2,315.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.